disgraced by ********** behaviour

I received a call from a call centre agent from the the unlimited group, offering me insurance and after explaining the terms, he then said to me that I would be receiving documents that I had to sign and forward back to them before any debit would be done but I received nothing and signed nothing, but to my surprise to find that this company had been debit an amount of R100.99 from my account for the past 2 years. And I then called the company's to get answers but they failed to get back to me for almost a week to investigate my query, and only when I call them back to get answers. Now I'm being told there was no mention of any documents in my call with the call agent. The Unlimited has tampered and altered with the voice call to get out of just refunding me, my hard earned money that they **********ly took from my account. Call it a misunderstanding, but it's a wrong that they refuse to fix. I wonder how the South African government can allow for such acts to disgrace corporate South Africa but fail to make corporate South Africa employ more educated unemployed youths of South Africa